troter troter
  • 14-02-2018
  • Mathematics
contestada

IfA equals a 2 by 2 matrix: row one is 1, 4 and row two is 5, 2 find -2A.

Relax

Respuesta :

jdoe0001 jdoe0001
  • 14-02-2018
"scalar" multiplication is very straightforward,

[tex]\bf A= \begin{bmatrix} 1&4\\ 5&2 \end{bmatrix}\qquad -2A=\begin{bmatrix} -2\cdot 1&-2\cdot 4\\ -2\cdot 5&-2\cdot 2 \end{bmatrix}\implies \begin{bmatrix} -2&-8\\ -10&-4 \end{bmatrix}[/tex]
Answer Link

Otras preguntas

Dad Mystery Guys. You seriously just have to look up stuff for an answer. Can someone explain what Nilbin is.
Compare and contrast an isotope and a neutral atom.
Write complete sentences to tell what the following people are doing right now, using the present progressive and replacing the direct objects with the correspo
plz help and explain​
NEED HELP IS DUE IN 5 MINUTES JUST TELL ME WHAT TO PUT IN
(SAT Prep) Find the value of x. X 125° 115°
Which two numbers doesStartRoot 128 EndRoot lie between on a number line? 11.0 and 11.1 11.2 and 11.3 11.3 and 11.4 11.4 and 11.5
On Robert’s shelf are 6 mystery books, 2 science fiction books, 3 adventure books, & 4 history books. Robert will randomly choose 1 book to read, not put it
simplify the numerical expression, expressing the answer in reduced form: 3/5*5/7+2/3*3/5-1/7*2/5=
PLEASE HELP DUE TODAY